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Filter Total Items: 612
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Year Published: 2002

Structure and flow-induced variability of the subtidal salinity field in northern San Francisco Bay

The structure of the salinity field in northern San Francisco Bay and how it is affected by freshwater flow are discussed. Two datasets are examined: the first is 23 years of daily salinity data taken by the U.S. Bureau of Reclamation along the axis of northern San Francisco Bay: the second is a set of salinity transects taken by the U.S....

Monismith, Stephen G.; Kimmerer, W.; Burau, J.R.; Stacey, M.T.
Structure and flow-induced variability of the subtidal salinity field in northern San Francisco Bay; 2002; Article; Journal; Journal of Physical Oceanography; Monismith, S. G.; Kimmerer, W.; Burau, J. R.; Stacey, M. T.

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Year Published: 2002

The effects of decreasing trace metal concentrations on benthic community structure

No abstract available.

Shouse, M. K.
Attribution: Pacific

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Year Published: 2002

The evolving benthic community

No abstract available.

Thompson, Janet K.

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Year Published: 2002

United States streamflow probabilities and uncertainties based on anticipated El Niño, water year 2003

During the course of spring and summer 2002, tropical sea-surface temperatures in the eastern Pacific Ocean have warmed and the wind and pressure fields have shifted, so that by August, there was considerable confidence that water year (October–September) 2003 will be characterized by a weak to mild El Niño climate (http://iri....

Dettinger, M.; Cayan, D.; Redmond, K.
Attribution: Pacific

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Year Published: 2002

Variability of suspended-sediment concentration at tidal to annual time scales in San Francisco Bay, USA

Singular spectrum analysis for time series with missing data (SSAM) was used to reconstruct components of a 6-yr time series of suspended-sediment concentration (SSC) from San Francisco Bay. Data were collected every 15 min and the time series contained missing values that primarily were due to sensor fouling. SSAM was applied in a sequential...

Schoellhamer, D.H.
Variability of suspended-sediment concentration at tidal to annual time scales in San Francisco Bay, USA; 2002; Conference Paper; Continental Shelf Research; Schoellhamer, D. H.

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Year Published: 2002

Water level, specific conductance, and water temperature data, San Francisco Bay, California, for Water Year 2000

Time series of water-level, specific-conductance, and watertemperature data were collected at seven sites in San Francisco Bay during water year 2000 (October 1, 1999 through September 30, 2000). Water-level data were recorded only at Point San Pablo. Specific-conductance and water-temperature data were recorded at 15-minute intervals at the...

Buchanan, P.A.
Attribution: Pacific

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Year Published: 2002

Waterbird use of bayland wetlands in the San Francisco Bay estuary: Movements of long-billed dowitchers during the winter

The San Francisco Bay estuary is a migration and wintering area for more than 1.5 million waterbirds on the west coast of North America. Because the estuary is located in a metropolitan area, development and diking of baylands (the region between the edge of the bay and the historical high tide line) have greatly altered the wetland landscape....

Takekawa, John Y.; Warnock, Nils; Martinelli, G.M.; Miles, A. Keith; Tsao, Danika C.
Waterbird use of bayland wetlands in the San Francisco Bay estuary: movements of long-billed dowitchers during the winter; 2002; Article; Journal; Waterbirds; Takekawa, J. Y.; Warnock, N.; Martinelli, G. M.; Miles, A. K.; Tsao, D. C.

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Year Published: 2002

Hydrology and chemistry of floodwaters in the Yolo Bypass, Sacramento River system, California, during 2000

Discharges to and floodwaters in the Yolo Bypass were sampled during winter and spring, 2000. The primary purpose of the study was to link changes in water quality in the Yolo Bypass to inflows from the Sacramento River (over Fremont Weir) and from four local streams that discharge to the west side of the floodplain. Specific conductance, chloride...

Schemel, Laurence E.; Cox, Marisa H.; Hager, Stephen W.; Sommer, Theodore R.
Attribution: Pacific
Hydrology and chemistry of floodwaters in the Yolo Bypass, Sacramento River system, California, during 2000; 2002; WRI; 2002-4202; Schemel, Laurence E.; Cox, Marisa H.; Hager, Stephen W.; Sommer, Theodore R.

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Year Published: 2002

Near field receiving water monitoring of benthic community near the Palo Alto Water Quality Control Plant in south San Francisco Bay : February 1974 through December 2000

Analyses of the benthic community structure over a 26-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinal clam Macoma balthica from the same area. The community has shifted from being dominated by several opportunistic species to a...

Thompson, Janet K.; Parcheso, Francis; Shouse, Michelle K.
Attribution: Pacific
Near field receiving water monitoring of benthic community near the Palo Alto Water Quality Control Plant in south San Francisco Bay : February 1974 through December 2000; 2002; OFR; 2002-394; Thompson, Janet K.; Parchaso, Francis; Shouse, Michelle K.

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Year Published: 2002

Summary of suspended-sediment concentration data, San Francisco Bay, California, water year 2000

Suspended-sediment concentration data were collected in San Francisco Bay during water year 2000 (October 1, 1999?September 30, 2000). Optical backscatterance sensors and water samples were used to monitor suspended sediment at one site in Suisun Bay, three sites in San Pablo Bay, two sites in Central San Francisco Bay, and three sites in South...

Buchanan, Paul A.; Ganju, Neil K.
Attribution: Pacific
Summary of suspended-sediment concentration data, San Francisco Bay, California, water year 2000; 2002; OFR; 2002-146; Buchanan, Paul A.; Ganju, Neil K.

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Year Published: 2002

Supporting data for hydrologic studies in San Francisco Bay, California : meteorological measurements at the Port of Redwood City during 1998-2001

Meteorological data were collected during 1998-2001 at the Port of Redwood City, California, to support hydrologic studies in South San Francisco Bay. The measured meteorological variables were air temperature, atmospheric pressure, quantum flux (insolation), and four parameters of wind speed and direction: scalar mean horizontal wind speed, (...

Schemel, Laurence E.
Attribution: Pacific
Supporting data for hydrologic studies in San Francisco Bay, California : meteorological measurements at the Port of Redwood City during 1998-2001; 2002; OFR; 2002-231; Schemel, Laurence E.

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Year Published: 2001

Mercury-contaminated sediments in the North Bay: A legacy of the Gold Rush

A legacy of the Gold Rush is mercury-contaminated sediments in the Bay. Miners used mercury to extract gold from tailings during the gold rush. A large amount of this mercury (some estimates are as great as 10,000 tons) was lost during extraction to the watershed during the gold rush era. This mercury-contaminated hydraulic mining debris made its...

Jaffe, Bruce E.
Attribution: Pacific

Filter Total Items: 223
Image: White-faced Ibis and Egrets
June 28, 2008

White-faced Ibis and Egrets

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image:  Black Skimmer and Gull-billed Tern Nesting Colony
June 20, 2008

Black Skimmer and Gull-billed Tern Nesting Colony

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image: Gull-billed Tern
June 20, 2008

Gull-billed Tern

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image: Black Skimmer
June 20, 2008

Black Skimmer

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image:  Black Skimmer and Gull-billed Tern Nesting Colony
May 21, 2008

Black Skimmer and Gull-billed Tern Nesting Colony

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image: American Avocet Feeding
April 29, 2008

American Avocet Feeding

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image: Egret
April 16, 2008

Egret

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image: Egret
April 16, 2008

Egret

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image: Least Sandpiper
April 16, 2008

Least Sandpiper

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image: Snowy Egret
April 16, 2008

Snowy Egret

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image: Snowy Egret
April 16, 2008

Snowy Egret

Birds found in and around the Salton Sea, California.

Attribution: Pacific
Image: Marbled Gowit
March 20, 2008

Marbled Gowit

Birds found in and around the Salton Sea, California.

Attribution: Pacific

Nine USGS Science Centers are administered by the Pacific Regional office, which is headquartered in Sacramento, California.